(Portland, OR) -- A man accused in a string of hotel robberies in Oregon and Washington is behind bars in Portland. Police say 40-year-old Ernest Dean is facing charges in the robberies of the Silver Cloud Inn in Northwest Portland and the LaQuinta Inn in Wilsonville earlier this month. Investigators believe Dean may also be responsible for hotel robberies in Gresham, Hood River, Cannon Beach, Albany, and Newport, along with a robbery in Woodland, Washington. Police say the robber would hold up the hotels at gunpoint and claim to have a bomb, then tie up the clerks and steal cash.